Low speed on cooling fan does not work on 2003 aztek?

If the low speed on the cooling fan of a 2003 Pontiac Aztek isn't functioning, it could be due to a faulty fan resistor or relay, as these components regulate fan speeds. Additionally, check for any wiring issues or blown fuses that may affect the fan's operation. If the fan works at high speed, the motor itself is likely fine, and focusing on the resistor or relay would be the next step. Testing these components with a multimeter can help identify the issue.